you brought a magazine for $5 and four erasers . You spent a total of $25. How much did each eraser cost ?

2 answers:

5 0

Im thinking the answer must be 4 because if you bought a magazine for $5 and buy 4 erasers for 5 each that would make 25... but can you list the answers so i can help you with this?

emmainna [20.7K]3 years ago

4 0

Each eraser is 5 dollars

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Using the diagram, calculate the values of the unknown variables: a, b, and c.

Lady_Fox [76]

Answer:

a = 82

b = 130

c = 118

Step-by-step explanation:

A quadrilateral is inscribed in a circle. So, it is a cyclic quadrilateral.

Opposite angles of a cyclic quadrilateral are supplementary.

Therefore,

a° + 98° = 180°

a° = 180° - 98°

a° = 82°

a = 82

By inscribed angle theorem:

a° = 1/2(b° + 34°)

82° * 2 = b° + 34°

164° - 34° = b°

b° = 130°

b = 130

Again by inscribed angle theorem:

76° = 1/2(c° + 34°)

76° *2 = c° + 34°

152° - 34° = c°

c° = 118°

c = 118

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3 years ago

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3 years ago

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barxatty [35]

Answer:

see attached

Step-by-step explanation:

The steps to solving an equation are those that undo the operations done to the variable. Here, the variable is multiplied by 2/3 and 15 is added to the product.

We undo the addition of 15 by subtracting 15 (from both sides of the equation).

We undo the multiplication by 2/3 by multiplying both sides of the equation by its inverse, 3/2.

It is useful to do simplification after each of these steps.

Attention needs to be paid to the signs. When 15 is subtracted from 9, a negative result is obtained. When that is multiplied by a positive number (3/2), a negative result remains.